Raining gravy

Potential Thanksgiving flash floods

A rainy forecast could bring flash floods and release gravy-like debris flows just in time for Thanksgiving, a weather service official said.

The forecast calls for one-half to one inch of rain between this morning and Wednesday night, said Stuart Seto, weather specialist.

The heavy rain falling on hillsides denuded by the Sayre Fire could send mud and debris flows cascading off the mountain and into the Santa Clarita Valley, "If (mountain areas) get enough rain on them, water can cause the top layer to wash off," Seto said.

Local emergency personnel are gearing up for the wet weather and advising people not to take unnecessary risks, according to a statement by the Los Angeles County Fire Department.

Storm drains might be flush with raging water and are dangerous places during heavy rain, the statement said.

If you see someone fall into a flood-swollen channel, do not jump in or try to save the victim. Immediately call 911. Swift-water rescue teams will respond as quickly as possible, the statement said.

Swimming skills have nothing to do with surviving in a flood control channel. The current is so strong that even highly skilled swimmers can get swept to their deaths.

If possible, throw any type of flotation device to the victim, the statement said.